.index {
    display: flex;
    justify-content: center;
    flex-direction: column;
    &-banner {
        background-color: #e4f4ff;
        width: 100%;
        display: flex;
        margin-top: 60px;
        align-items: center;
        justify-content: center;

        img {
            width: 80%;
        }

        ;
    }

    &-content {
        width: 960px;
        margin: 0 auto;
        display: flex;
        flex-direction: row;

        //左边文章部分
        &__left {
            flex: 1;
        }

        //侧边栏
        &__sider {
            margin-left: 20px;
            width: 280px;

            &__select {
                display: flex;
                flex-direction: column;
                margin-top: 10px;

            }

            &__item {
                padding: 15px 0;
                padding-right: 10px;
                transition: all 0.3s;
                a {
                    text-decoration: none;
                    cursor: pointer;
                    font-size: 15px;
                    display: flex;
                    flex-direction: row;
                    align-items: center;
                    padding-left: 10px;
                    justify-content: flex-end;
                    strong {
                        display: block;
                        
                        color: #33353c;
                        font-weight: 400;
                        margin-left: 10px;
                        margin-right: auto;
                    }
                    p {
                        font-size: 12px;
                        color: #666c72;
                    }
                }
                &:hover{
                    background-color: #f6f6f6;
                }
            }

            .line {
                margin: 0 auto;
                height: 1px;
                background-color: #f6f6f6;
                width: 250px;
            }
        }
    }
}